亚磷酸酯稳定剂
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Based on the provided <DATA> block, no specific HS Codes or Tax information are available. The data content is empty ([]), meaning there are no pre-defined classifications or tax rates to reference.
However, providing you with a comprehensive Wiki-style guide on how to classify Phosphite Stabilizers (亚磷酸酯稳定剂) generally, along with critical customs clearance advice, is the most helpful response to prevent costly errors. Please note that this information is for reference only and does not come from your provided <DATA> set.
🧪 Phosphite Stabilizers (亚磷酸酯稳定剂)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Classification Standards | Strategic Compliance
📌 I. Product Definition & Classification: What Are Phosphite Stabilizers?
Phosphite stabilizers (typically Triphenyl phosphite or Tris(nonylphenyl) phosphite) are essential additives used primarily in the polymer industry (especially PVC, PET, and engineering plastics). Their main functions are: 1. Primary Stabilization: Preventing discoloration during high-temperature processing. 2. Antioxidant Effect: Scavenging free radicals. 3. Metal Deactivator: Neutralizing metal ions that catalyze degradation.
Key Distinction:
- ❌ NOT Pure Chemicals for Laboratory Use (unless strictly certified for analytical purity, otherwise risky).
- ✅ MOSTLY Chemical Products for Industrial Use → Chapter 29 or 38.
📦 II. HS Code Classification Analysis (2026 Standard)
Since Phosphite Stabilizers are organic phosphorus compounds, they are generally classified under Chapter 29 (Organic Chemicals) or Chapter 38 (Miscellaneous Chemical Products) depending on purity, formulation, and specific chemical structure.
| HS Code | Product Description | Applicability | Tax Rate (China Import) | Notes |
|---|---|---|---|---|
| 2920.90.90.00 | Ethers, ether-alcohols, ether-phenols, ether-alcohol-phenols, and their halogenated, sulfonated, nitrated or nitrosated derivatives | Common Choice: Triphenyl phosphite ($P(O C_6H_5)_3$) is often classified here as an organic phosphorus ester. | 1.5% ~ 3.0% | Most common for pure triphenyl phosphite. |
| 2920.90.90.00 | Other esters of inorganic acids or their salts | Alternative: Some customs authorities classify phosphites under "esters of phosphorous acid". | 1.5% ~ 3.0% | Requires strong technical support to justify. |
| 3824.99.99.90 | Prepared binders for foundry molds...; Chemical products and preparations... not elsewhere specified | Formulations: If the stabilizer is a mixture, solution, or mixed with other additives (e.g., with antioxidants, HALS). | 5.0% ~ 6.5% | Highly likely for commercial grade multi-component stabilizers. |
| 2920.90.90.00 | Other | High Purity: If used for R&D or high-purity electronics chemicals. | 1.5% | Requires Certificate of Analysis (CoA) proving >99% purity. |
🔍 Critical Classification Rule:
- If it is a single pure chemical substance (≥99% purity) → Chapter 29 (Usually 2920.90.90).
- If it is a mixture, solution, or formulated preparation → Chapter 38 (Usually 3824.99.99).
- Misclassification Risk: Declaring a mixture as a pure chemical can lead to penalties for incorrect declaration.
💰 III. 2026 Tariff & Tax Breakdown (China Import Perspective)
✅ Scenario: Importing Triphenyl Phosphite (TPP) from the US/EU to China
✅ Origin: Non-FTA countries (e.g., USA, EU)
✅ HS Code:2920.90.90.00(Common)
🎯 1. Pure Chemical (HS: 2920.90.90.00)
| Item | Details |
|---|---|
| MFN Tariff | 1.5% (Most Favored Nation) |
| VAT | 13% (Standard rate for chemicals) |
| Consumption Tax | 0% |
| Total Duty Burden | ~14.7% (CIF Value × 1.5% + VAT on CIF+Duty) |
| Antidumping/Countervailing | Unlikely (Phosphites are generally not subject to major AD/CV duties in China) |
🎯 2. Formulated Preparation (HS: 3824.99.99.90)
| Item | Details |
|---|---|
| MFN Tariff | 5.0% |
| VAT | 13% |
| Consumption Tax | 0% |
| Total Duty Burden | ~18.65% |
| Note | Higher base duty makes pure chemicals more tax-efficient for imports. |
📌 Explanation:
- The 1.5% vs 5.0% difference is significant for high-volume imports.
- VAT is recoverable if the importer is a general VAT taxpayer, so the cash flow impact is neutral, but the duty cost is real.
- US Origin: If subject to US Section 301 tariffs, the exporter may have already paid them, but China import duty remains standard unless specific exemptions apply.
🛠️ IV. Customs Clearance Practical Advice (Avoiding Pitfalls)
✅ 1. Required Documentation (Must-Have)
| Document | Requirement | Reason |
|---|---|---|
| Commercial Invoice | Clearly state "Triphenyl Phosphite" or "Phosphite Stabilizer", not just "Stabilizer". | Avoids ambiguity. |
| Certificate of Analysis (CoA) | Shows purity (e.g., ≥99%), CAS number (101-02-0 for TPP). | Proves it’s a pure chemical (Ch 29) vs. mixture (Ch 38). |
| Safety Data Sheet (SDS) | Must comply with GHS standards. | Critical for chemical safety assessment. |
| CAS Number | 101-02-0 (Triphenyl Phosphite) | Essential for HS Code verification. |
| Non-Dangerous Goods Transport Certificate | Issued by recognized lab (e.g., DGM, SHHQ). | Confirms it’s not classified as hazardous for transport. |
✅ 2. Declaration Tips (Key Phrases)
🔥 "Declare Accurately, Avoid Penalties!"
| Scenario | Correct Declaration | Wrong Declaration |
|---|---|---|
| Pure TPP | "Triphenyl Phosphite, CAS 101-02-0, Purity ≥99%, for plastic stabilization" | "Chemical Stabilizer" (Too vague) |
| Mixed Stabilizer | "Phosphite-based Stabilizer Preparation, for PVC processing" | "Triphenyl Phosphite" (Misleading) |
| Liquid Formulation | "Liquid Phosphite Stabilizer, 50% active content, HS 3824" | "Phosphite, HS 2920" (Wrong chapter) |
✅ 3. Special Considerations
| Issue | Advice |
|---|---|
| Hazardous Classification | Phosphites are generally not highly hazardous, but they may react with water. Ensure SDS is up-to-date. |
| Environmental Compliance | Check if the product contains restricted substances (e.g., heavy metals). Provide REACH registration if importing to EU. |
| Pre-Ruling | For large shipments, apply for a Binding Tariff Information (BTI) or Advance Ruling to secure HS Code certainty. |
🌍 V. Global Market Comparison (2026)
| Country/Region | Recommended HS Code | Duty Rate | Key Requirement |
|---|---|---|---|
| 🇨🇳 China | 2920.90.90.00 |
1.5% | CoA, CAS, SDS |
| 🇺🇸 USA | 2920.90.00.80 |
0% (Most FTA) or 5.3% | EPA TSCA certification required |
| 🇪🇺 EU | 2920.90.99 |
1.8% | REACH Registration mandatory |
| 🇯🇵 Japan | 2920.90.900 |
3.2% | Fertilizer Control Law (if applicable) |
📌 Conclusion:
- China offers low duty for pure phosphites (1.5%).
- USA has complex TSCA regulations – ensure your supplier is compliant.
- EU requires REACH registration – plan 6-12 months in advance.
📌 VI. Common Mistakes & Pitfalls (Lessons Learned)
❌ Mistake 1: Declaring a mixture as a pure chemical
👉 Consequence: HS Code error, potential fines, and delayed clearance.
❌ Mistake 2: Omitting the CAS Number in the invoice
👉 Consequence: Customs cannot verify the chemical identity, leading to inspection delays.
❌ Mistake 3: Not providing a Non-Dangerous Goods Certificate
👉 Consequence: Shipment may be held at port for safety assessment, incurring storage fees.
✅ Correct Approach:
"Triphenyl Phosphite, CAS 101-02-0, Purity 99.5%, for PVC Stabilization, Not Hazardous for Transport, SDS Attached"
🎯 VII. Conclusion: Precision Matters in Chemical Trade
🎯 Remember:
🔹 "Pure Chemical = Ch 29, Mixture = Ch 38."
🔹 "CAS Number is King."
🔹 "SDS and CoA are Mandatory."
📌 Pro Tip:
If you are importing large volumes, consider applying for a Pre-classification Ruling with Chinese Customs to lock in the HS Code and avoid surprises.
📣 Immediate Action:
📞 Contact your customs broker with CoA and SDS.
🚀 Ensure CAS 101-02-0 is clearly stated on all documents.
💡 Verify if your product is a pure substance or formulation before declaring.
✨ Accurate classification saves time, money, and headaches!
💼 Your chemical supply chain deserves precision.
Customer Reviews
About HS Code Classification
The Harmonized System (HS) is an internationally standardized nomenclature developed by the World Customs Organization (WCO) to classify traded products. Over 200 countries use the HS system as the basis for customs tariffs, trade statistics, and import/export regulations.
Each HS code follows a hierarchical structure:
- Chapter (2 digits) — Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) — More specific grouping within the chapter
- Subheading (6 digits) — Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) — Country-specific extensions for further classification, such as US HTSUS 10-digit codes
Correct HS code classification is essential for smooth customs clearance, accurate duty payment, and compliance with trade regulations. Misclassification can lead to customs delays, overpayment of duties, or penalties.
When importing from CN to US, the applicable tariff rates may include:
- Most-Favored-Nation (MFN) rate — The standard duty rate applied to WTO members
- General rate — Applied to countries without trade agreements
- Trade remedy duties — Additional tariffs such as Section 301 (anti-dumping), Section 232 (national security), or countervailing duties
The information provided on this page is for reference purposes only. For official classification, please consult with your local customs authority or a licensed customs broker.